Jon Lawrence Size 18 Blue Button Down Zip Pockets Women's Long Rain Coat Vintage.

Very good preowned condition, only flaw is that the zipper is broken. However it also comes with buttons for closure. 
Measurements taken with garment laying flat (approximately)

bust (flat across front, underarm to underarm) 26-1/4"
Sleeve (from neckline seam to end) 30"
total length (from top of shoulder to hem) 52-1/2"

Feel free to contact me if you needed additional information.